You can make a xylophone out of broken hockey sticks. Make sure all the sticks are the same width or the pitch will be off. Cut the longest ones first so if you make a mistake you can always shorten it and use it for the next note. Lightly glue them to a piece of foam rubber or staple them to a thick piece of cotton rope. It is important that they are able to vibrate freely when you strike them with a stick.